21161040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{2383}}^1$

素因数の和:2436

約数の個数: 80

約数和(自身を含む): 67400448

約数和(自身を除く): 46239408

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 37, 40, 48, 60, 74, 80, 111, 120, 148, 185, 222, 240, 296, 370, 444, 555, 592, 740, 888, 1110, 1480, 1776, 2220, 2383, 2960, 4440, 4766, 7149, 8880, 9532, 11915, 14298, 19064, 23830, 28596, 35745, 38128, 47660, 57192, 71490, 88171, 95320, 114384, 142980, 176342, 190640, 264513, 285960, 352684, 440855, 529026, 571920, 705368, 881710, 1058052, 1322565, 1410736, 1763420, 2116104, 2645130, 3526840, 4232208, 5290260, 7053680, 10580520, 21161040]

約数ペア:

[(1, 21161040), (2, 10580520), (3, 7053680), (4, 5290260), (5, 4232208), (6, 3526840), (8, 2645130), (10, 2116104), (12, 1763420), (15, 1410736), (16, 1322565), (20, 1058052), (24, 881710), (30, 705368), (37, 571920), (40, 529026), (48, 440855), (60, 352684), (74, 285960), (80, 264513), (111, 190640), (120, 176342), (148, 142980), (185, 114384), (222, 95320), (240, 88171), (296, 71490), (370, 57192), (444, 47660), (555, 38128), (592, 35745), (740, 28596), (888, 23830), (1110, 19064), (1480, 14298), (1776, 11915), (2220, 9532), (2383, 8880), (2960, 7149), (4440, 4766)]